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sammy [17]
3 years ago
6

Help!!!!!!! I will make you brainliest

Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

(a) The appropriate formula is C = 2πr.  Here r = 14 cm, so

C = 2π)14 cm = 28π cm, or (if we take π to be 22/7), C = 88 cm²

(b) We use the same circumference formula:   C = 2πr  and solve it for r before inserting numeric values:

        C                                                 132 m               7(132 m)

r = --------         and in this case,   r = ------------------- = ------------- = 21 m

      2π                                                [ 2 * (22/7) ]            44

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Qaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Kipish [7]

Answer:

32.8 miles

Step-by-step explanation:

Amy is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.95. See the figure below. Amy has 48 miles remaining after 31 minutes of driving. How many miles will be remaining after 47 minutes of driving?

Answer: The general equation of a line is given as y = mx + c, where m is the slope of the line and c is the intercept on the y axis. Given that the slope is -0.95, substituting in the general equation :

y = -0.95x + c

Amy has 48 miles remaining after 31 minutes of driving, to find c, we substitute y = 48 and x = 31. Therefore:

48 = -0.95(31) + c

c = 48 + 0.95(31)

c = 48 + 29.45

c = 77.45

The equation of the line is

y = -0.95x + 77.45

After 47 minutes of driving, the miles remaining can be gotten by substituting x = 47 and finding y.

y = -0.95(47) + 77.45

y = -44.65 + 77.45

y = 32.8 miles

3 0
3 years ago
Whats 9 +10 will give brainlest
shtirl [24]

Answer:

19

Step-by-step explanation:

"You stupid"

"No Im not"

"Whats 9+10"

"21"

"You stupid"

4 0
3 years ago
Read 2 more answers
What is 2/-4 simplified<br>​
pickupchik [31]

Answer:

-0.5 is the answer I think

8 0
3 years ago
Read 2 more answers
So, A, B, D, or C???
allsm [11]

Answer:

c.

Step-by-step explanation:

Negative numbers are always less than positive numbers. 3/10 is less that 1/4:

Making the answer c.

6 0
3 years ago
Read 2 more answers
-4/9x-5/72x+1/8x= -56 please help me guys
geniusboy [140]

Answer:

x=144

Step-by-step explanation:

Therefore, x=144 should be your final answer.

3 0
3 years ago
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